Service & Maintenance

Service & Maintenance
Our service team operates close to client facilities and is available 24/7/365, ensuring fast and efficient on-site support.

PLANT SERVICE & MAINTENANCE

Unlike many equipment suppliers whose service teams are located thousands of miles away, we provide rapid and effective local support at any time.

We deliver preventive, corrective, and predictive maintenance designed to maximize reliability, minimize unplanned downtime, and extend equipment service life.

We also focus on environmentally responsible engineering and durable solutions that reduce environmental impact and improve resource efficiency.

COMMON CHALLENGES WE HELP SOLVE

Many treatment systems were not designed for variable hydraulic and organic loads or seasonal fluctuations. As a result, operators often face process instability, discharge limit violations, and increased regulatory risk.

Excessive energy and chemical consumption, combined with frequent operator intervention, can significantly increase operating costs.

Sudden spikes in wastewater volume and load – caused by production growth, seasonal peaks, or emergency conditions – often exceed the capacity of existing systems and make regulatory compliance difficult.

Many older plants were not designed for future expansion or stricter environmental regulations, making upgrades technically complex and financially demanding.

Without reliable monitoring and data analytics, operators are unable to provide a quick response to changes in wastewater composition and loading, increasing the risk of process instability and discharge violations.

Without continuous support and laboratory testing, system efficiency gradually declines, downtime risk increases, and maintaining environmental compliance becomes more challenging.

365/7/24 SERVICE AND MAINTENANCE

MANAGER
Velibor Grdić, bacc. ing. mech
tel:+385 91 739 2411
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ENGINEERING & INSTALLATION

At CROTEH, our Engineering Department provides expert technical support, supervision, and process optimization for wastewater treatment systems, helping you achieve efficient, stable, and fully compliant plant operation.

PLANT ENGINEERING & INSTALLATION

Treatment Plants

Our systems deliver stable and reliable operation even under significant hydraulic and organic load fluctuations.

Facilities

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1. REAL SAMPLE COLLECTION

We collect representative field samples directly at client facilities and analyze them in our accredited laboratory in accordance with recognized standards. Our laboratory testing includes physical, chemical, and biological parameters required to define design input values, including load variability and seasonal or operational fluctuations. These data form the foundation for reliable scaling solutions and technology development.

2. DEVELOPMENT OF TECHNICAL SOLUTIONS

Based on the assessment of existing conditions and laboratory results, we develop technical solutions tailored to each client’s requirements. When designing solutions, we consider plant capacity, influent characteristics, discharge requirements (public sewer systems or natural receiving waters), and circular economy principles. To support detailed process development, our laboratory is equipped with reactors, measuring instruments, and pilot-scale systems that allow us to simulate real operating conditions. Through pilot testing, we evaluate process efficiency, optimize operating parameters, and validate treatment concepts before full-scale implementation. This approach significantly reduces investment and operational risk while ensuring long-term sustainability of the selected solution. We also place strong emphasis on optimizing energy, chemical, and resource consumption while minimizing the plant’s environmental footprint throughout its lifecycle.

3. ENGINEERING DESIGN AND PERMITTING

Our multidisciplinary engineering team prepares complete project documentation, from conceptual designs and feasibility studies to detailed engineering documentation and permit applications. All documentation is developed in accordance with current legislation, technical regulations, and applicable standards while maintaining close coordination with clients and regulatory authorities.

4. PLANT ENGINEERING AND INSTALLATION – Complete turnkey plant implementation proposal, including detailed design documentation and commissioning services

We deliver turnkey treatment plants tailored to each client’s needs. Our services include detailed engineering design, equipment procurement and delivery, site organization, installation of process and electrical equipment, and integration of automation and control systems. The final stage includes functional testing and preparation for plant commissioning.

5. CONSTRUCTION SUPERVISION

We provide professional technical supervision during construction to ensure full compliance with project documentation, technical standards, and contractual requirements. We monitor construction quality, installed equipment, and adherence to project timelines.

6. PLANT COMMISSIONING AND STAFF TRAINING

After construction and functional testing are complete, we perform staged commissioning with continuous monitoring of process parameters and adjustment of operating conditions. We also prepare operational manuals and provide professional staff training to ensure safe, efficient, and long-term stable plant operation.

7. POST-CONSTRUCTION TESTING

After project completion, we perform functional and other tests to verify that the treatment plant achieves the required operational parameters and effluent quality.

8. PLANT SERVICE AND MAINTENANCE

We provide preventive and corrective maintenance, scheduled service inspections, and 24/7/365 technical support. Our systematic maintenance approach extends equipment lifespan, minimizes downtime risk, and ensures high operational efficiency.

9. PLANT MONITORING AND OPERATIONAL CONTROL

We implement SCADA and PLC automation and control systems that enable continuous plant monitoring, analysis of key process parameters, and rapid response to operational deviations or fluctuations in wastewater flow and loading. We place particular emphasis on reducing energy, chemical, and labor consumption.

10. PLANT OPTIMIZATION AND RECONSTRUCTION

We perform technical assessments of existing systems to identify capacity limitations, energy losses, and operational inefficiencies. Based on our findings, we recommend retrofits, upgrades, and modernization of technological process lines to improve efficiency, ensure compliance with new regulatory requirements, and extend plant service life.